In A Nutshell Arrokoth, a snowman-shaped object billions of miles from Earth, is one of the oldest and least-disturbed relics of the early solar system Scientists have long debated whether its two ...

Deep within the Kuiper belt, some small worlds look like they were assembled from two mismatched snowballs pressed together.

Researchers simulated how gravitational collapse forms two-lobed contact binaries in the Kuiper Belt without destructive ...

Astronomers have long debated why so many icy objects in the outer solar system look like snowmen. Michigan State University ...

Over the past six decades, scientists have discovered two dozen stellar-mass black holes using X-ray methods. The mass distribution of these black holes, mainly between five to 25 solar masses, shows ...